#include<iostream>
using namespace std;
int main() {
	int wuxie = 20;
	int age = 0;
	cout << "请输入你的年龄" << endl;
	cin >> age;
	if (age > wuxie) {
		cout << "你比我大" << age - wuxie << "岁。" << endl;
	}
	else {
		cout << "你比我小" << wuxie - age << "岁。" << endl;

	}

	cout << "我今年" << wuxie << "岁" << "很高兴认识你" << endl;

	system("pause");
	return 0;
}